Patch tracker / KB5084818

KB5084818: SQL Server 2017 for x64-based Systems Security Update (April 2026)

KB5084818 is a Medium security update for SQL Server 2017 for x64-based Systems, released 2026-04-14. It closes 2 CVEs with a maximum CVSS of 6.7. It is the 34th largest of the 60 updates Microsoft shipped that month, by CVEs closed.

Update summary

Medium
2026-04-14
Released
2
CVEs fixed
6.7
Max CVSS v3
Medium
Severity
Deploy this cycle
Fixes 2 CVEs for SQL Server 2017 for x64-based Systems. No confirmed in-the-wild exploitation in this set today.

Fixes 2 CVEs. Most severe CVSS 6.7 (Medium). EPSS exploit probability up to <1%. Among the lower half of tracked Microsoft updates by EPSS exploit probability.

Senserva found thiswe track every release for this product line, so we can tell you this package is behind

A newer security update for Microsoft SQL Server 2017 for x64-based Systems (CU 31) has shipped since this one: KB5122774 (2026-09-08). For cumulative update families the newer package includes these fixes, so installing that one is usually the shorter path. Verify against your own update rings before you skip this package.

Microsoft Update Catalog: download KB5084818Microsoft support article
Senserva AI Opinion for KB5084818

KB5084818 patches two CVEs (CVE-2026-32167 and CVE-2026-32176) across three SQL Server generations: 2025 CU3, 2022 CU24, and 2017 GDR. Both flaws top out at Medium Severity (CVSS 6.7) with 0% EPSS and no CISA KEV or ransomware ties, so this is a maintenance-priority fix rather than an emergency. What stands out is the wide product spread, meaning a mixed SQL estate may need three different update packages to be fully covered.

Do this: Inventory your SQL Server instances by version and schedule the matching CU or GDR package (2025 CU3, 2022 CU24, or 2017 GDR) into your next maintenance window.

AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for KB5084818

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

Full tracking and change history for KB5084818

Released
2026-04-14
Last changed
2026-09-26
Changes tracked
2

Senserva began recording day-to-day change history on 2026-07-07, and refreshes it several times a day. Release dates are historical where Microsoft publishes them; revision history is tracked from that date forward, so it does not include changes made before then.

Check if KB5084818 is installed

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CVEs fixed by this update

Sorted exploited-first, then by CVSS. Every CVE links to its Senserva page with the full risk facts, references, and a ready-to-paste AI prompt.

CVESeverityCVSSEPSSExploited
CVE-2026-32167High8.8<1%No
CVE-2026-32176High8.8<1%No

Scope and sources

Affected products
Also released in April 2026

KB5082052

115 CVEs · Critical · exploited

KB5082060

121 CVEs · Critical · exploited

KB5082063

124 CVEs · Critical · exploited

KB5082123

107 CVEs · Critical · exploited

KB5082142

116 CVEs · Critical · exploited

KB5082198

87 CVEs · Critical · exploited

KB5082200

107 CVEs · Critical · exploited

KB5083768

119 CVEs · Critical · exploited

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references
Official KB5084818 page (Microsoft Support)Microsoft Update CatalogMicrosoft Security Update Guide

See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.

New to a term on this page? CVE, KB, KEV, CVSS, and EPSS are each explained once, on the Senserva security lexicon. Reference: Microsoft CVE and vulnerability management and the Microsoft patching guide.
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